How PHP captures include_once exceptions

How does PHP capture include_once errors?
How does PHP capture Include_once and require_once errors?

If the file does not exist, or if there are other errors in the file such as compilation, can it be captured?

DEMO:
try{
Include_once ("t/ttt.php");
}catch (Exception $e) {
Echo ' caught exception: '. $e, GetMessage ();
}


------Solution--------------------
You can make this a little more flexible:
if (!file_exists ("t/ttt.php"))
{
Include_once ("t/ttt.php");
}
Require_once error is a compile-time error, not runtime, should not be able to catch the wrong.
------Solution--------------------
File does not exist can be checked with file_exists ()
File program errors you can use the Isset,is_ series function to check the condition of some core variables

------Solution--------------------
Help the top.
No catching.
Just look at the bug report.
------Solution--------------------
Under the top, error report will not, each time with require_once, so wrong to see the page error prompt!
------Solution--------------------
File_exists after processing ...

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